CT3HF — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving CT3HF, decoded by SO8OO in southeastern Poland. 26 FT8 messages attributed to this token as transmitter, on 40m, 10m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-18 and 2026-09-05.
These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.
SO8OO decoded 26 FT8 messages attributed to CT3HF as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (81%), followed by 10 m (19%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (62%); the estimated median was -13 dB.
Overview
Bands
Last attributed message: 2026-09-05 21:52 UTC
Observed FT8 message patterns
- Attributed sample
- 26 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -13 dB
- Estimated 10th-90th percentile
- -21 to -9 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 16, strong (≥ -8 dB) 0.
WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with CT3HF in decoded directed-looking exchanges:
Most frequent locator attributed to CT3HF
The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.
- Attributed locator
- IM12 · 7 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 3,720 km (approx.)
- Last such locator decoded
- 2026-09-05 21:46 UTC
A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.
Observed FT8 exchanges
S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.
| Time UTC | Band | CT3HF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-05 21:56 | 40m | - / - | RD9M/3 | -12 / - | 4 | Partial capture |
| 09-05 21:54 | 40m | - / -11 | R2GFN | +4 / - | 7 | Partial capture |
| 09-05 21:49 | 40m | -20 / - | UA9JCH | -12 / -16 | 6 | Partial capture |
| 09-05 21:47 | 40m | - / - | UR9QQ | 0 / - | 4 | Partial capture |
| 09-05 21:45 | 40m | - / -11 | LA1KUA | +6 / - | 4 | ✓ Closing fragment |
| 09-05 21:44 | 40m | - / - | OE4MTI | -16 / - | 6 | Partial capture |
| 09-05 21:44 | 40m | - / -4 | OZ3FYN/P | +6 / - | 2 | Partial capture |
| 09-05 21:44 | 40m | -21 / +1 | OZ7SKB/P | +10 / - | 10 | ✓ Closing observed |
| 09-05 21:42 | 40m | - / -4 | DL5EBS | -5 / - | 4 | ✓ Closing fragment |
| 09-05 21:38 | 40m | -18 / -11 | EX7CQ | +3 / - | 3 | ✓ Closing observed |
| 09-05 21:34 | 40m | - / - | DL5EBS | -5 / - | 2 | Partial capture |
| 08-26 17:24 | 10m | -13 / - | TI2CC | - / +1 | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 215145 -21 1028 UA9JCH CT3HF -16 (x3) 215430 +1 1028 CT3HF R2GFN KO92 (x3) 215600 -14 1932 <CT3HF> RD9M/3 215600 +4 1160 CT3HF R2GFN R-11 215630 -8 1932 CT3HF RD9M/3 215630 +5 1160 CT3HF R2GFN R-11 215630 -3 1028 CT3HF LZ2VQ KN23 215700 -10 1932 CT3HF RD9M/3 215700 +3 1160 CT3HF R2GFN R-11 215730 -14 1931 <CT3HF> RD9M/3 215730 +4 1160 CT3HF R2GFN R-11
UTC dB Audio Message 191645 -13 1018 <...> CT3HF R-04 172415 -10 1998 TI2CC CT3HF IM12 (x4)
Decoder S/N history by band
Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.
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